MAHLE Engine Crankcase Vent Valve Seal

The MAHLE engine crankcase vent valve seal (also called a PCV valve seal, PCV valve gasket or crankcase ventilation valve O-ring) creates a tight seal where the positive crankcase ventilation (PCV) valve or crankcase vent valve mounts to the engine. It helps keep the crankcase ventilation system closed so blow-by gases are routed correctly back to the intake for combustion.

Key Features:

• Seals the crankcase vent valve against the mounting surface to help prevent vacuum leaks and oil seepage
• Made by MAHLE, a leading original equipment supplier of engine components and sealing technology
• Built from elastomer sealing materials designed to resist engine oil, heat and crankcase vapors
• Helps maintain proper crankcase pressure and ventilation system performance
• Designed as a direct replacement for the original seal when servicing the PCV or crankcase vent valve

A worn, hardened or cracked vent valve seal can cause rough idle, oil leaks, unmetered air entering the intake and increased emissions. Replacing the seal whenever the valve is serviced helps restore a reliable seal and keeps the engine breathing as designed.